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2 Sheets-'Sheet 1.

J. SULLIVAN. PBRMUTATION LOCK. FOR DOORS, 8w. N0. 67,927, Patented Aug. 20, 1867.

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T. J. SULLIVAN PERMUTATION LOOK FOR DOORS &O.

No. 67.927. Patented Aug. 20, 1867.

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T. 'J. SULLI-VAN; 011 no CHESTER, NEW YO RK.

Letters Patent No. 61,927, dated August 20, 1867.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, T. J. SULLIVAN, of Rochester, in the county of Monroe, and State of JNcwYork, have invented a new and useful Improvement in Locks; and I do hereby declare that the following is a full and exact description thereof, reference being bad to the accompanying drawings, making part of this specification. I

Figure 1 is an elevation of the lock proper, with the back plate removed to show the interior arrangement, and with the bolt protruded. Y i C Figure 2, a perspective view of-thc operating parts of the lock proper removed from the case.

Figure 3, an elevation of the cam-disk, a portion oi the connecting-lever, the dog-plate, and the sliding;

catch, us combined iu action. I I Figure 4, a. section of. the combinntion wheels,and the segment-frame and studthat support them.

Figure 5, a perspective view of the parts constituting the fastening for the knob or key-shaft, the said parts being shownseparat'ed, T

Figure 6, an elevation of that portion of the'lock outside the lock proper for disconnecting the bolt-work of the safe-door from the operating parts when locked.

Figure 7, perspective viewof the same arrangement.

' Figure 8, perspective view of one'of the combination-wheels. I,

Like letters of referenceindicate corresponding parts in all the 'fi'guresl; I

My improved lock belongs to that class hnown'as combination locks for'bank-and safe use. The invention consists in an improvedconstruction andarrangement of the working parts oi' thc lock proper, and also of an improved connection of the heavy bolt-work oi" the safe-door with said lock proper, whereby the bolt-workmay be detached or disconnected from the shaft that operates it from the outside so that no strain can be brought to bear upon it, but it is perfectlyiinsuluted and 'reuioved from reach.

As'represented in the drawihgs, A is the case of the lock proporithat is placed upon the door to be guarded. 'Throughthis passes the ordinary knob or kcy-shaftB, which is operated by a knob onthe outside of the door. This shaft is held in piace by screwing-into a head, Q, on the inside oi. the lock. I Said head has nicks or indentatious, b b, (fig. 5,) in which fit prbjections a c of a collar, D. A. corresponding projection, c, of the collar fits into a longitudinal slot, 11, of the knob-shaft. *llvhen this is done a jam-nut, E, screws up against the two parts and holds them firmly in contact, and they cannot become separated nor can the shaft unscrew. In this manner I secure the shaft so thatit cannot be withdrawn, and at the same time I render-it adjustable to doors of different thicknessesyfor, by removing the jam-nut and collar at any time, it willbc seen I can turn the screw to any desired position. This connection secures 'greuter strength than in any other device for a similar purpose with which I am acquainted. The combinatiomwhcels FF E, instead of resting upop the knob-shaftasan axis or bearing, as in some locksfor upon a projecting stud pfthj back plate, as'in some other locks, rest upon a hollow bearing, '8, (fig. 4,) of a frame,G, in the form of a segment, which is secured just insidothe back plate,

by screws to studs f ff of the lock. By this arrangements he end of the knob-shaft does not extend through the wheels as usual, but siniply comes opposite the bearings d, and'thehe'ad'C operates the wheels. ,While I thus avoid running the knob-shaft through as the'bearing of the wheels, (in which case the wheels cannot be easily removeddfrom place,) and avoid projecting a stud from the back plate'of the lock toform a bearing for the wheels, (in which c'ase the wheels niustalways be removed from "place when the-back plate is removed,) the employment ofuthe segment-frame G enables me to either retainer remove the 'whecls-.easily,;independent of either theshaft or back plate. This is of much advantage. The great result I accomplish, however, is that the action of the wheels is reversed froui that of ordinary locks of this class,-a nd therefore I can pick up the combination more readily; that is to say, the wheel next 'theba'ck plate is first-set, and then the others in succession, till all are set to the pro-arranged combination; therefore, if I desire to pick up or arrange the combination, all I have todo is to insert thc usual key g through the hole It, (fig. 2,) in the segment G, and then necessarily through the corresponding holes in the wheels till they'ure all in order.. In' ordinary locks, since the wheel on the opposite side from the above is the one to be set first, this picking up of the combination is awork of some diflicult y. On the shaft B, back of the head 0, is situated a cam-disk, J, with three cams z is Z, and a pin, m, having the relative positbnsfindicated in fig. 3. Above the cam-disk rests the head of a lever, H,

extending forward and connecting with the usual lock-bolt I by means of a bearing, n, striking into a socket in its upper cdge,.or in some equivalent manner. The end next the non nap. a -guide-slot, a, resting over aguide-screw, p, to hold it in place and allow the nocessary l'ongitudinal movement. The end over ,the' canndis'k has,a similar slot, 0, but this slot passes over the usual dog q, striking into the notchesof the combinati n, wheels. This dog" is secured to a vertically. acting plate, K, in the rear of the lever, having a'guide -slohp, I passing over a scrcw,'1, for holding it in place. The lower edge of the head of the lever has a notc'h, s. Below the connecting-lever, and at one side of the cam-disk, is situated a slide, L, pressed forward by a spring," t. The end next the cam-disk is provided with a cam-head, u, and also with a rib or projection, 11, which strikes into a corresponding depressionor socket, w, of-the dog-plate when the latteris raised, as shown in figs. 2 and'3. This slide is held in place by slots and screws similar to 0,1), 8%., of the other parts. When the combinationwheels are being set the dog 9 rides in such a manner upon the end of. the disk J as to touch "the edges of the wheels but once, and then slightly, at each revolntion of the shaft. When the'notches of the wheel-s are all in coincidence with the doga slight backward movement ofthe dog will allow the notch aof the leverto fall over the pin m, which forms such a connection that a reverse movement of the shaft will retract'the lock-bolt. The relative arrangement .of the cams Us l wi-tl1 the other parts is such as to allow;the necessary stroke of the lever to throw the bolt, but to raise the lever at the proper timesto disengage the parts and to throw the slide L out from engagement with the dog-plate K to allow the dog-plate to rise. 'It will be noticed that the eanis z'kserve simply to raise theilcver, and the cam [to disengage the slide. Any person skilled in the art can produce the relative arrangement of these parts to act at the propertime and in the proper manner.

- Thisarrangement of the parts, as above described, is simple and effective. The lever H is connected directly to the dog-plate K by the dog itself, an arrangement which]: believe to be original with myself. The connection of the slide with the dog-plate I' also believe to be new. The combination-wheels in ordinary locks. are made up of a rim and a centre, the latter beingcncased by the former, and secured by suitablemeans which will allowadjustmcnt. I make my wheels, as shown infig. 8, of simply a rim or disk, M, and a centre, N, the latter not'being encased or enclosed, but simply having a bearing or hub resting in a socket of-the rim. By tliis' arrangement I not only avoid muchextra labor, but also make the device much more eifectual. Various devices have also been employed for holding the centre imposition. In one, two gripers are used, with a spring to each, whichstrikc against the smooth periphery of the encased centre. I corrngate or notch the projecting edgeof my centre, as shown, and use two paw ls or dogs xx pivotedto the side of the rim, and held in engagement with the ccntre by a single spring, 3 secured to a'stud, a, as shown, and bearing on both pawls. This. simplifiesthe arrangement, and reducosthe expense, and lessens the danger of displacement. The pawls are expanded to allow the combination to be changed by the key g passing through a hole in the wheel-between ,tlim. On bank-safe doors the bolt off the lock is made to project against the stem a of the heavy bolt-work O thatshoots'into the casing of the safe to secure it. In ordinary safes this bolt-work'is operated byte separate shaft, 13, passing outward through thedoor, and having a knob or crank outside to slide it forward or-back, as the lock will allow, since the holt work is too heavy to be thrown by the belt of the lock. By applying great power to this shaft it.is. frquently the'case that it will drive the bolt of the lock proper, back, or at least dis'arrange the mechanism of the look so thathit cannot be unlocked. It also serves as a means to ascertain the I combination on which the lock is set by its contact with the mechanism .of the lock. v

To obviate this difliculty I detach, disconnect, or isolatethe bolts work from its operating shaft when locked, andv also make the connection ofthe bolt-work with saidshaft by a separate combination of wheels, whiehmust be set on the pro-arranged formula before the connection can be made. To accomplish this, Iv prefer the arrangement of parts as shown-inthe drawings. A set of combination-wheels, F F F, are arranged upon the shaft v 'B.,sim ilar tethose of the lock proper, with which engages a dog, q, whose lever H is connected with theboltwork. When the dog engages with the wheels the bolt-work can be thrown forward (it-"backward, but when it is thrown 'up, the bolt-work is disengaged In -order to thus throwup the dog-l ever, I pivot at b a bent arm, I, having at one end a pin, f, that rests against theend 'of the lock-bolt, and, at the other a pin, 9, that rests under the clog-lever. Thus, when the bolt is thrown forward the lever is thrown up, and vice versa. In order to hold the dog in placoin the notches of the wheels in going back and forth, I employ'a segment, Q, covering the edges of the wheels at the proper positions, as shown.

What I claim as my invention, and desire to secure by Letters Patent, is-- V 1. Connecting the shaft 13 with the head C by the collar andjam-nut E, ashcrein set forth. 2. Connecting the combination-wheels to the frame G, which is secured within the lock in the manner set forth, so as to avoid extending the shaft through it, or removing them with the back plate, as-specified;

3. Combining the lever H'with the dog-plate K by the dog 7, in such a manner that while they are bound I together each is allowed a free action, as set forth. I v 4. The combination of the slide L with the'dog-plate K and lever H,'as and for the purpose specified. 5. The combination of thec'am-disk J with the lever H, slide L, and dog-plate K, as specified. 6. Disconnccting the heavy bolt-work of a safe door from .its 'operating-shaftwhen the door is locked, as specified. V i

7. The combination ofthevbent arm P with the leverH and the bolt of the lock, for the purpose set forth. 8. The segm ent Q,*in combination with the dog q", and wheels FF 'F as and for the purpose set forth. 4 In witness whereof I re hereuntosigned my name in the presence of two subscribing witnesses.

I T. I. SULLIVAN. Witnesses: T

R. F. Oseoon, J. A. Davis. 

